JPH0230486B2 - - Google Patents

Info

Publication number
JPH0230486B2
JPH0230486B2 JP56093870A JP9387081A JPH0230486B2 JP H0230486 B2 JPH0230486 B2 JP H0230486B2 JP 56093870 A JP56093870 A JP 56093870A JP 9387081 A JP9387081 A JP 9387081A JP H0230486 B2 JPH0230486 B2 JP H0230486B2
Authority
JP
Japan
Prior art keywords
circuit
voltage
motor
lens
subject
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP56093870A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57208520A (en
Inventor
Kaoru Yanagawa
Kentaro Hanma
Yoshihiro Todaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56093870A priority Critical patent/JPS57208520A/ja
Publication of JPS57208520A publication Critical patent/JPS57208520A/ja
Publication of JPH0230486B2 publication Critical patent/JPH0230486B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP56093870A 1981-06-19 1981-06-19 Automatic focusing device Granted JPS57208520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56093870A JPS57208520A (en) 1981-06-19 1981-06-19 Automatic focusing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56093870A JPS57208520A (en) 1981-06-19 1981-06-19 Automatic focusing device

Publications (2)

Publication Number Publication Date
JPS57208520A JPS57208520A (en) 1982-12-21
JPH0230486B2 true JPH0230486B2 (zh) 1990-07-06

Family

ID=14094487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56093870A Granted JPS57208520A (en) 1981-06-19 1981-06-19 Automatic focusing device

Country Status (1)

Country Link
JP (1) JPS57208520A (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6069612A (ja) * 1983-09-27 1985-04-20 Matsushita Electric Ind Co Ltd 自動焦点整合装置
JP2709706B2 (ja) * 1987-01-17 1998-02-04 日本ビクター株式会社 オートフォーカス方式
JP2621157B2 (ja) * 1987-02-12 1997-06-18 キヤノン株式会社 自動合焦装置
US5021731A (en) * 1989-02-21 1991-06-04 Metricor, Inc. Thermo-optical current sensor and thermo-optical current sensing systems
JP2517432B2 (ja) * 1990-03-16 1996-07-24 三洋電機株式会社 オ―トフォ―カス装置
US5185669A (en) * 1990-10-01 1993-02-09 Sony Corporation Still video camera with white balance and image pickup lens adjustment
JP4657960B2 (ja) * 2006-03-27 2011-03-23 富士フイルム株式会社 撮像方法および装置
JP2018087860A (ja) 2016-11-28 2018-06-07 オリンパス株式会社 撮像装置及び撮像装置の制御方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55111925A (en) * 1979-02-20 1980-08-29 Ricoh Co Ltd Focusing point signal generator
JPS5664324A (en) * 1979-10-29 1981-06-01 Canon Inc Focusing state display system of automatic focus detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55111925A (en) * 1979-02-20 1980-08-29 Ricoh Co Ltd Focusing point signal generator
JPS5664324A (en) * 1979-10-29 1981-06-01 Canon Inc Focusing state display system of automatic focus detector

Also Published As

Publication number Publication date
JPS57208520A (en) 1982-12-21

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